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发明名称
Improvements in or relating to cold-cathode stepping tubes
摘要
申请公布号
GB849335(A)
申请公布日期
1960.09.28
申请号
GB19580000316
申请日期
1958.01.03
申请人
PHILIPS ELECTRICAL INDUSTRIES LIMITED
发明人
分类号
H03K17/52;H03K29/00
主分类号
H03K17/52
代理机构
代理人
主权项
地址
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